> 3 or 4 times RDA would be safe for a long time, I suppose.
u would it be more correct to say you have absolutely no idea and have not
bothered to find out?
http://www.medsafe.govt.nz/Profs/Datasheet/r/Roavittab.htm

since paleo man ate liver, of many and varied species, we should consider
why. the question is, what is the optimum amount of vitamin A, not the
death-camp amount. a man will not die even at 1,000,000 IU, and 100,000 IU
is the minimum over a prolonge dperiod to cause some symptoms, which are
relieved quickly on cessation of intake.  50,000 IU seems a better amount
for RDA than 5,000. unless you wish to be a walking ghost.

andrew